chore: initial scaffold with running local stack and portal auth

Brings up Dezky's local development environment end-to-end:

Infrastructure (docker-compose):
- Traefik v3.7 reverse proxy with mkcert TLS (v3.2 couldn't speak Docker API 1.54)
- Postgres + Mongo + Redis with healthchecks and init script for per-service users
- Authentik 2025.10 (server + worker) as OIDC IdP
- Stalwart v0.16 mail server (image renamed from stalwartlabs/mail-server)
- OCIS 7.0 with PROXY_TLS=false and OCIS_CONFIG_DIR=/etc/ocis so init writes
  where the server reads
- Collabora office, plus the portal + provisioning service stubs
- Docker network aliases on Traefik so containers resolve auth.dezky.local etc.
  through the network (not host /etc/hosts)
- Docker socket mount parameterized for macOS Docker Desktop symlink path

Authentik provisioning (done via API after stack boot):
- ocis-provider (public client) + OCIS Files application
- dezky-portal provider (confidential) + Dezky Portal application
- Admin API token bound to akadmin manually since 2025.10's
  AUTHENTIK_BOOTSTRAP_TOKEN env var doesn't auto-materialize a token row

Portal (apps/portal):
- Nuxt 3 with nuxt-oidc-auth 1.0.0-beta.11 against generic 'oidc' preset
- Global auth middleware; login at /auth/oidc/login redirects to Authentik
- Visual implementation of Claude Design 'Auth' canvas: AuthShell, NodeMark,
  Auth* sub-components, design tokens as CSS custom properties
- Pages: auth/login, auth/expired, auth/disabled, index (post-login landing)
- mkcert root CA mounted into the portal so Node fetch trusts Authentik's
  self-signed cert (NODE_EXTRA_CA_CERTS) — dev only

Docs:
- AUTHENTIK-SETUP.md updated with manual token bind + portal provider scripted
  alternative
- NEXT-STEPS.md: Phase 1 and Phase 2 marked done with file locations and
  dev-mode caveats

Dev-mode shortcuts that need to be revisited before prod:
- skipAccessTokenParsing on the OIDC config
- NODE_EXTRA_CA_CERTS mkcert mount
- Bootstrap password still the generated value in .env
- Authentik admin token (dezky-bootstrap-token) is non-expiring

apps/portal/components/UiIcon.vue

@@ -0,0 +1,56 @@
+<script setup lang="ts">
+// Minimal Lucide-style line icons. Add more as needed from project/platform-tokens.jsx.
+
+const props = withDefaults(
+  defineProps<{
+    name: 'mail' | 'shield' | 'key' | 'check' | 'external' | 'arrowRight'
+    size?: number
+    stroke?: string
+    strokeWidth?: number
+  }>(),
+  {
+    size: 16,
+    stroke: 'currentColor',
+    strokeWidth: 1.6,
+  },
+)
+</script>
+
+<template>
+  <svg
+    :width="size"
+    :height="size"
+    viewBox="0 0 24 24"
+    fill="none"
+    :stroke="stroke"
+    :stroke-width="strokeWidth"
+    stroke-linecap="round"
+    stroke-linejoin="round"
+    aria-hidden="true"
+    style="flex-shrink: 0"
+  >
+    <template v-if="name === 'mail'">
+      <rect x="2.5" y="5" width="19" height="14" rx="2" />
+      <path d="M3 7l9 6 9-6" />
+    </template>
+    <template v-else-if="name === 'shield'">
+      <path d="M12 3l8 3v6c0 5-3.5 8-8 9-4.5-1-8-4-8-9V6z" />
+    </template>
+    <template v-else-if="name === 'key'">
+      <circle cx="9" cy="14" r="4" />
+      <path d="M12.5 11L20 3.5l-2-2-2 2 2 2-2 2 2 2" />
+    </template>
+    <template v-else-if="name === 'check'">
+      <path d="M5 12l5 5L20 7" />
+    </template>
+    <template v-else-if="name === 'external'">
+      <path d="M14 4h6v6" />
+      <path d="M20 4l-9 9" />
+      <path d="M19 14v5a1 1 0 0 1-1 1H5a1 1 0 0 1-1-1V6a1 1 0 0 1 1-1h5" />
+    </template>
+    <template v-else-if="name === 'arrowRight'">
+      <path d="M5 12h14" />
+      <path d="M13 5l7 7-7 7" />
+    </template>
+  </svg>
+</template>